Examples with DeleteCommand org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand used on opensource projects

Example 1 with DeleteCommand

use of org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand in project tdi-studio-se by Talend.

the class BusinessBaseItemSemanticEditPolicy method getSemanticCommand.

/**
     * @generated
     */
protected Command getSemanticCommand(IEditCommandRequest request) {
    IEditCommandRequest completedRequest = completeRequest(request);
    Object editHelperContext = completedRequest.getEditHelperContext();
    if (editHelperContext instanceof View || (editHelperContext instanceof IEditHelperContext && ((IEditHelperContext) editHelperContext).getEObject() instanceof View)) {
        // no semantic commands are provided for pure design elements
        return null;
    }
    if (editHelperContext == null) {
        editHelperContext = ViewUtil.resolveSemanticElement((View) getHost().getModel());
    }
    IElementType elementType = ElementTypeRegistry.getInstance().getElementType(editHelperContext);
    if (elementType == ElementTypeRegistry.getInstance().getType("org.eclipse.gmf.runtime.emf.type.core.default")) {
        //$NON-NLS-1$ 
        elementType = null;
    }
    Command epCommand = getSemanticCommandSwitch(completedRequest);
    if (epCommand != null) {
        ICommand command = epCommand instanceof ICommandProxy ? ((ICommandProxy) epCommand).getICommand() : new CommandProxy(epCommand);
        completedRequest.setParameter(BusinessBaseEditHelper.EDIT_POLICY_COMMAND, command);
    }
    Command ehCommand = null;
    if (elementType != null) {
        ICommand command = elementType.getEditCommand(completedRequest);
        if (command != null) {
            if (!(command instanceof CompositeTransactionalCommand)) {
                TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()).getEditingDomain();
                command = new CompositeTransactionalCommand(editingDomain, null).compose(command);
            }
            ehCommand = new ICommandProxy(command);
        }
    }
    boolean shouldProceed = true;
    if (completedRequest instanceof DestroyRequest) {
        shouldProceed = shouldProceed((DestroyRequest) completedRequest);
    }
    if (shouldProceed) {
        if (completedRequest instanceof DestroyRequest) {
            TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()).getEditingDomain();
            Command deleteViewCommand = new ICommandProxy(new DeleteCommand(editingDomain, (View) getHost().getModel()));
            ehCommand = ehCommand == null ? deleteViewCommand : ehCommand.chain(deleteViewCommand);
        }
        return ehCommand;
    }
    return null;
}